Roller-iron.



ROLLER IRON.

APPLICATION 111.111) JUNE 5,1911.

Patented Feb. 18, 1913.

2 BHBETSSHBET 1.

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P. CHATFIBLD. ROLLER IRONIV APPLICATION FILED JUNB, 1911 Uivrrnn STATES PATENT OFFICE- l FRAVNKLN CHATFIELD, OF MINNEAPOLIS, MINNESOTA.

ROLLER-IRON.

. through and controlling such feed-and regulating "the mixture. A

A further object is to provide means for retaining the heatl ofthe roll when it 1s not 1n use.

Other objects will appear from the follow-l` ing detailed description.

The invention consists generally in various constructions and cbmbinaticns, all `as hereinafter described A and :particularly pointed out in the claims.

In the accompanying drawings forming part of thisspecification, Figure l is a sectional view of a roller iron, cover and base embodying my finvention, showing the roll mounted on the base, Fig. 2 is a view showing the roll removed from the base, the base being illustrated in section, Ilg; 3 is a detail .sectional viewL through the roller iron kat right angles substantiallytothe section line of Fig. 1, Fig. 4 is a side view, showing the gas and air connections to/the'roll, Fig. 5 is asectional` view, showing the means for mixing the air' and ,gas and controllingrthe proportions -of the mixture.

In the drawing, 2 represents an 'ironing board,- 3 a base secured thereon having an inclined way 4 over which the roller may be moved to itsseat on the base. The base has side walls or flanges 5 and a hinged plate 6 that is adaptedto tilt under the Contact of the relientherewith and close. the passage leading to the way 4 and shut` off, as far as possible,'tl 1eescape of heat by radiation from the roller when the device is not in use.

7 represents a hollow roller or cylinder i and 8 is -a 'cover inclosing the upper. portion of the rollerand resting upon the flanges -5 and having hollow studs '9 and 10 on which the roller is journaled. The coverhas a lining 11 of asbestos or other non-heat conducting material, and the ends of the roller are preferably provided with panels of similar material. A suitable handle 13 is mounr- 7 ed on the cover 8 and by means of which the Speci sation of Letters Patent.

Application le- June 5, 1911.

Patented nel). 18,1913. Serial No. 631,484,

device is moved back and forth over the goods to be lroned. The top of the cover has an openingl '13 with lugs 14 at intervalsaround said opening, between which lugs a sad iron 1:3 may be placed for heating purposes. .16 is a burner centrally disposed in the roller 7, 'having an imperf'orate head 17 and provided with a series of ports 18 at intervals in its walls through which the flames are directed outwardly against thc walls of the roller. This burner is preferably formed on one head of the roller and is supplied With gas and air through a feed pipe l9.'that is journaled in one head of the roller and inthe stud 10, the roller-and .burner turning freely on this supply pipe.

A flange 20 incloses the' supply Ipipe and the bearing therefor, and hasports 21 leading to ports 22 in the head of the roller. Through these portsl the products of combustion from the lburner may escape into the space between the roller and cover and from thence' through the opening in the to of the cover. Similar ports 23 are preferab y provided in the opposite head of the roller.

The outer end of the supply pipe19 is connected to a head 24 in which is a nozzle 25 with its discharge end near the port 26 providedhin'the outer end of the pipe 19. An airsupply pipe 27 communicates with the head 24 and thepassage through the nozzle 25 and supplies air under pressure to the roller burner and a CatesA with the head v24 and supplies gasto saidv head near the discharge end of the nozpipe 28 c ommuni- Y zle 25, the passage of air through the nozzle creating a partial vacuum 1n the head around the nozzle and causing a suction in the pipe 28 to draw thefgasjnto the supply `pipe and mix it with the air from the pipeL 27. The air supply pipe is provided with a valve 27 and the gas pipe has a valve 29 provided with aport 30 for regulating the feed of gasand a needle valve 31 controls the admission of air through the port 32 leading to the gas pipe. By means of thls needle valve the'proportion Aof air mingling with the gas can be increased or decreased,

according to the desired richness of the miX- ture. I also prefer to provide a port 33 in the pipe 28, normally closed by a sleeve 34 Vthatisslidably mounted on said lpipe and held in its depressed position by a spring 35.

QA yoke 36 has-its4 ends mounted in said sleeve and when the roller and cover are placed upon the base the lower end of the yokewill'` contact-.With vthe cam plate 37 andv the weight of the roller and cover will cause the sleeve 34 to slide upwardly, compressing its spring and exposing vthe port 33 and allowing a still larger volume of air to flow to the burner and produce a corresponding reduction inl the richness of the mixture. As soon as the roller` and cover are removed from the base the spring will return the sleeve to its normalposition, closing the r port I prefer alsoto provideal bracket 38 secured to the cover and havinga fork v39 to, straddle the as and air.. pipes, a fastening device 40 'being inserted into holes in the forksto prevent accidental separation of thecover and gas and air. pipes and their connections. `lVhenever desired, however, this fastening device may be removed and the head 24 and supplyjpipe can be pulled out vof the rollerrand cover. yI also prefer toprovide a relief vin connect-ionl withA the roller, which consists in a collar 41 fitting within an opening' 4Q" in the head of the rollerand having mica plates 43 normally closing the opening .and held in place by a spring ring 44. l In case of explosion .in the burner. these mica plates will hebroken andv prevent damage to the roller or cover.

I- claim as my invention `LTA roller iron comprising a hollow roll,`

a cover in closing the upper portion of' said roll and wherein said roll is journaled, a

burner Within said roll and having a supf '.ply pipeextending .outwardly through the h ead of said roll and the lwall of`said cover, air and gas pipes communicating with said xsupply pipe, and .means actuatedA bythe pressure of the roll for automatically increasing i 40 A' the admission of air to said sup- Ply Plpe 2. yThe combination, with a hollow roll,

-of a burner therein provided with a supply pipe, air and gas pipes communicating with said supply pipefasaid gas pipe having an air port therein, -a ,sleevel normally closing said port., a spring normallyholding said .sleeve in its closedposition, and means for moving said'sleeve/'to expose said portfto decrease the .richness of the mixture.

hollow roll journaled therein, a burner pro- Y `jecting into said roll concentric with the axis thereof and having a supply pipe and means for supplyinga mixture of air and gas tosaild burner, the end Wall of said burnerpopposilte the inlet opening being 3. A roller iron connarisingl a cover, a`

limperforate and having a concave surface `adapted to direct vthe gas laterally within said burner, the sidewalls of said burner.

having a series of holes thereinat intervals opposite to and spaced from the walls of said roll.

4. The combination, with a base and a cover adapted' to rest thereon, of a hollow roll journaled in'said cover and inclosed thereby, a burnerprovided within said roll and having a vgas supply pipe, and means actuated by the placing of said cover on said base for admitting air to said supply pipe and decreasing the `richness mixture. ,l

fThe combination, with a base and a coveradapted to rest thereon, of a hollow roll journaled in said cover, a burnerwithin said roll having .a supply pipe and a gas pipe connected therewith, said gas pipe having an air port, a sleevev normally closing of the said air port, a spring for holding said,

sleeve in its closed position, an arm mounted on said sleeve and'lneans on said base in position to engage said arm and move said sleeve toexpose said port when said rolland covelare in position on said base.

6. The. combination, lwith a` baschaving an `opening' on one side, of a roll adapted to enter'vthe opening in sald base, a cover-for said roll adapted to rest. von said base `over the opening therein, and means actuated by the weight of the roll in said base for lclosing the opening between said base and cover.V

A7. The combination, with a base having an open side, of a cover, a roll journaled in said cover and having a burner and a supply pipe therefor, a plate pivoted in said base and adapted to be engaged by said roll when placed in position on said base to close the open side of said base. 

